Machine for making and cutting double-faced corrugated paper.



N0. 74.s ,-s0v'. PATENTED DEC. 15,1993. J. T. FERRES.

MACHINE FOR MAKING'AND CUTTING DOUBLE FACED CORRUGATED PAPER.

ARPLIGATION runnmnrmmse.

N0 MODEL. 8 SHEETS-SHEET 1 N N 2 ,fiiliieafsea. V

$1M J. JMM 4 By Er 2570? neg.

1m: Noam: Pmmco, mourned WASNANCITDN. u. c.

No. 746,807. PAIENTED DEG.15,'1903.Y

J. T.'FERRES.'

MACHINE FOR MAKING AND CUTTING DOUBLE FAGBD CORRUGATED PAPER.

Arm-10mm FILED MAR. 15. 1899.

HO MODEL. a 6 SHEETS-SHEET 2.

we "cams Perms cu, Photo-Luna. WASHINGTON. ov a No. 746.807. PATENTEDDEC. 15, 1903.

J. T. FERRBS.

MACHINE FOR MAKING AND GUTTINWDOUBLE FAGED CORRUGATED PAPER,

X y APPLIOATION. FILED MAR. 15, 1899 H0 MODEL. 6 SHEETS-SHEET 3.

- No.746,807. PATENTED 13150.15, 1903.;

J. T. FERRES.

MACHINE FOR MAKING AND CUTTING DOUBLE FACED CORRUGATED PAPER.

APPLICATION FILED MAR. 15, 1899.

no MODEL. s SHEE'IS-SHBET 4.-

PATENTED DEG.15,1903.

J. '3. EERRES- V VAND GUTTIN-G'DOUBLB moan CORRUGATED PAPER.

APPLICATION FILED MAB. 15, 1899.

MACHINE FOR MAKING 6 SHEETS-SHEET 5.

PATENTED DEC. 15,1903.

3. T. EERRESQ MACHINE FOR MAKING AND CUTTING DOUBLE FACED-GORRUGATEDPAPER.

APPLICATION FILED MAR; 15, 1899.

6 SHEETS-SHEET 6.

i0 MODE-L.

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Patented December 15, 1903.

PATENT ()FFICE.

JEFFREY "r. FERRES, F ANDERSON, INDIANA.

uAcmNE FOR MAKtNG AND turrmeoou atemotn CORRUGATED- PAPER.

SPECIFICATION forming part of Letters Patent No. veesor, dated December15,-i 903.

Application filed March 15, 12 399. Serial No. 799.196; (Np model.) p

7 To an whom, it may cancer-1t:

Be it known that I, JEFFREY T, Funnies, a citizen of thelUnited Statesof America, re'siiiing at Anderson, in thecounty of Madison, in

the State of lndia'na, have invented a certain newand' useful MachiueforMaking and Cutting Double-Fa'ced'Oorrugated Paper, ,jof

which the following is adescriptio'n, referenjce being bad to theaccompanyingdrawings, formingpart of thisspeci'fication.

My inven'tionrelates more particrilarly to the manufacture of what iscommonly known as doublefaod corrugated 'paper,-i. 6.,[

corrugated paper having'plain paper-pasted upon both sides of it,fori'ninga structure composedof threelthickness'es of paper-the twooutside facings of plain paper-and the intermediate sheet of corrugatedpaper inclosed between them; and my inveh'tion has for its principalobject the provision of irfn-.

proved means for applying andsecuring the I second sheet .or facingtopreviously-for ned .and the facing-strip secured to the corru- In myapproved apparatus a strip of sin gle-faced corrugated paper and a stripof 'plain facing-paper are independently fed into thev apparatus ormachine, paste applied. to

the corrugated surface of the former, and the two strips then broughttogether and passed between suitable heaters by which, in conjunctionwith suitably-applied air-blasts ito carry away the moisture, the pasteis dried gated face of the single-faced strip, thereby Y producing adouble-faced strip, and thence I .length.

onwardbetween thefeedaprons,(by which the strips are drawn through themachine,) and thence out the delivery end of themachine be heath anintermittently-operated knife, which severs the continuous strip ofdouble-faced paper into sheets or boards of the desired The movementpfthe paper through the apparatus is continuous and uninterruptedfso thatthe operations of 'applying the paste, bringing the two strips together,pressing them against each other, drying them, and hurting the completedboard into "'the de s ihedi.lengths are all performed while the paper ism oving' at 'a uniform speed through the apparatus.

, The several featuresof my invention therefore-relate moreespecially towhat may be termed a continuous as distinguished from an intermittentoperation, although some of them may be utilized in the intermittentmethod of operation, as will be apparent from the explanation of themhereinafter given.

In the accompanying drawings, Figure l is a side elevation of a novelapparatus or machine lpy' whichmy invention may be carried out; Fig.2, avertical longitudinal middle section of he'same on the line 2 2 of Fig.3;

' Fig. 3, a top plan view of the complete apparatus; Fig.4,"iin enlargedtopplan View, partly in sections, of the lower heater; Fig. 5,a'correspending view showing a modified construction of the heater; Fig.6, a detail side elevation of the heaters with the means for raisin'gandlowe'ring and adjusting the upper heater; Figs. 7 and 8, a detailvertical section and detail top plan view, respectively, of one of' thedevices for applying the airblasts to the paper as'it passes between theheaters; Fig. 9, an enlarged detail view of the pressuredevices forflattening the crowns of the corrugations preparatory to applying thepaste to them; Fig. 10, a sectional detail of the double-faced paperconstituting the resulting product; Fig. 1 1, an enlarged detail sideelevation of 'the' upper rear right-hand corner of the machine, showingthe knife carrying devices; Fig. 12 a further detail view of the sa'm eparts; Fig. 13, a detail side elevation ofthe front end of the arm whichactuates the swinging knife-carrying'frame; Fig. 14:, a sectionaldetails'howingthe adj ustable presser-bars-betwen which the opposite edges ofthe feed-aprons pass; Fig-15, an enlarged detail showing theconstruction of the sprocket-chains of the feed-aprons'and themethodofsecu ring the slats of the feedaprons to them, and Fig. 16a detailview showing a modified construction of the feedapro ns. I I

The same letters of reference are used to views. p

' The strip of single faced corrugated paper A, which is deliveredto'themachine at its left-hand or forward end, Figs. 1 and'2, may

indicate corresponding parts in the several be drawn from any suitablesupply, as from a roll of such paper suitably supported adjacent thatend of the apparatus; but in my own practice I have taken such paperdirect from the machine or apparatus in which it is manufactured, suchmachine or apparatus being that heretofore patented to me in LettersPatent No. 545,354, of August 27, 1895,

which I arrange in line with the apparatus shown in Figs. 1 and 2 and ashort distance from the left-hand end thereof.

The strip of plain facing-paper which is to be applied to the corrugatedsurface of the strip A is carried on a supply-roll B, mounted upon thetop of the machine shown in the drawings at its forward end.

Premising that both strips of paper are drawn rearward through'themachine by the operation of feed or drawing apronsin the rear part ofthe machine, hereinafter described, the operation of the apparatus, andincidentally its construction, may be explained by For the purpose ofslightly flattening the corrugations of the strip A preparatory toapplying the paste I pass the strip A at its entrance to the machinebetween a roller 0 and a presser-plate D, Figs. 1 and 9, the latterbeing secured to a rock-shaft, which may be turned in its hearings inthe framework to adjust the space between the plate D and roller C andbe securely locked in adjusted position. From the roller 0 and plate Dthe strip A passes upward between the rolls E F, the latter of which isthe paste-roll, and is supplied with paste over an intermediate dam G bythe roll H, which is journaled ina paste trough or reservoir I, mountedupon the front end of the framework. From the strip Bis in the presentinstance led rearward from the under side of its supply-roll over anidle roller K, thence downward and forward over a second roller L, andthence rearward into the machine with the strip A, the roller L beinglocated in such position that as the strip B passes rearward around itsunder side it is brought into contact with and pressed against the upperpasted surface of the corrugated strip A.

The heaters between which the two strips of paper pass as they enter themachine consist of two horizontal steam-heated plates separatedvertically from each other a sufficient distance to permit'the strips ofpaper to pass freely between them, but at the same time close enoughtogether to maintain the facing-strip in firm contact with the pastedsurface of the corrugated strip, so that the two strips will be firmlyand smoothly united as they become gradually dried in the passagethrough the machine.

In the present instance the upper heater or heater-plate is forconvenience in construction and handling formed of two separate platesor sections M M and the lower heater of two like separate plates orsections N N, or the four plates or sections may be considered fourseparate heaters, two upper ones M M and two lower ones N N. Theoperation of the apparatus would not be changed by merging the two upperplates M M into a single upper plate or heater and the two lower platesN Ninto a single lower plate or heater nor by leaving them as they areand adding another upper and lower heater in rear of the heaters M N.Exceptwhere specific description of the parts may require I shall referto the upper heater as a single element and the lower heater as a singleelementand may be understood to refer to either one or more plates whichconstitute the heater. My preferred construction of these heater-platesis shown in Fig. 4, where a continuous steam-pipe O is shown passedtransversely in reverse bends through the body of the plate from itsrighthand or rear end to its left-hand or front end. This steam-pipe iscast directly in the body of the plate, as shown, the pipe beingarranged, in position in the mold and the metal for the plate thenpoured in aroundit. Fig. 4 shows the two lower heater-plates N N, thespace between them being bridged by a connection in the steam-pipe 0, sothat the latter is continuous from one end of the heater to the other.The live steam is admitted to the pipe 0 at the rear or right-hand endof the heater, and near its left-hand end the pipe 0 is provided with aplurality of exhaustoutlets P, separately controlled by'suitable valvesP Figs. 1 and 3, for a purpose hereinafter described.

Fig. 5 shows a substitute construction of heater for that shown in Fig.4, a continuous passage for the steam back and forth transversely acrossthe heater from the inlet to the outlet end thereof being formed by thecored passages, separated by transverse partitions, as shown.

The heater-plates shown in Figs. 4 and 5 are the lower plates N N, whoseupper surfaces, shown in said views, are planed and smoothly polishedthroughout, as are also the under surfaces of the plates M M of theupper heater. The plates of the lower heater may be secured in fixedposition in the framework; but provision is made for raising andlowering the plates of the upper heater, as follows, reference being hadto Figs. 1, 2, 3, and 6: Each of the plates M has firmly secured in thecenter of its upper side a vertical rod Q, which extends upward througha bearing R, formed upon and at the middle of a transverse cross-bar Sof the framework. The upper ends of the rods Q are threaded and havescrewed upon them nuts, forming the hubs of sprocket-wheels T, whichnuts or hubs rest upon circles ofantifriction-balls, seated in circulargrooves formed in the upperends of the bearings B. An endlesssprocket-chain U, passed around the wheels T, provides a means forturning them in unison in either direction to raise or lower whose upperend passes through a hole in a cross-bar W upon the top of theframework. The upper ends of the rods are threaded and have screwed uponthem nuts X, which rest.

upon the upper sides of the bars W. By

means of these rods V and their nuts X the plates M maybe properlyleveled and adjusted in relation to the lower plates N. The

gravity of the plates M, is sufficient. to lower them whenever theslackening of the nuts Ti and X permits and likewise suflicient tomaintain them in fixed relation to the lower plates N after they havebeen properly adjusted.

In first starting the machine with a new; supply of paper, the plates Mwill be lifted away from the plates N, as indicated by the. dotted'linesin Fig. 6, and the ends of the two paper strips pulled rearward betweenthe the supply of paper is exhausted.

In order that the strips may be dried as rapidly as possible in theirpassage through the,

machine and to avoid the necessity of providing heaters of undue length,it is desirable to apply ahigh degree of heat to the strips in theirpassage between the heaters; but if the maximum degree of heatapplicable to the strips for their final drying be applied tothem attheir point of entrance between the heat-I ers when the paste is freshupon them it will cook the paste instead of gradually drying it,

with the result that the facing-strip will not be properlysecured to thecorrugated strip. I have therefore provided means for graduallyincreasing the degree of heat applied to the strips as they are drawnrearward between the heaters, applying the minimum de-v greev to them attheir entrance betweenjthe heaters, and gradually increasing it to themaximum degree'at or near their point of exita, This I accomplish by theconstruction ;of the heatersillnstrated in Figs." 4 and 5 and heretoforedescribed] The live steam being admitted to the heater at its rear endand:

having to pass transversely back and forth through the body of theheater and travel a long distance before it reaches the forward frontend of the heater. It results from this arrangement that while the rearends of the heaters may be heated to the maximum degree desired for thefinal drying of the strips aconsiderably less degree of heat is appliedto the strips as they first enter between the heaters, and as the pasteis gradually dried an increasing degree of heat is applied until .themaximum degree is reached.

The number of heaters used can be increased to any number desired. Themore there are the more rapidly the paper can be drawn through theapparatus and dried, and the means for raising them can be provided forby putting two sprocket-wheels T on the middle screw Q and using two ormore chains U. V A

It is sometimes desirable to apply more heat to one side of the stripsthan to the other as they pass between the heaters, and for this 2purpose I'have provided means for increasing or decreasing at will theheating-surfaces to which the strips are exposed in their passagebetween theheaters, such means consisting in the supplementalexhaust-outlets P. (Shown in Figs. 4 and 5.) Byopening the valvecontrolling any one of these exhausts, leaving the others closed, theportion of the heater at the left of'such exhaust will be cut off fromthe circulation of steam and not be heated, thereby decreasing theheating-surface of such heater to a corresponding extent,with the resultthat a greater amount of heat will be applied to the opposite side ofthe strip as .it passes between the heaters, assuming the oppositeheater to have been left heated through-- out its area.

To expel the moisture from the strips as they are passed through theheaters, I provide means for directing blasts of air transverselybetween the heaters in alternate opposite directions. To this end Ileadalong each side of the machine in about the horizontal plane of thepassage between the heaters an airpipe Y, connected with any suitableapparatus for forcing air therethrough, one end of each pipe beingconnected with such apparatus and the otherend of the pipe being closed.These pipes are tapped at intervals and have nipples Z screwedinto them,Fig. 8,which nipples are connected by short sections of flexible hose Awith other nipples, B, Fig. 7, screwed into the outer sides of hollowshoes C. These shoes 0 arevclosed at their outer sides and oppositeends, but provided with longitudinal slits or narrow openings alongtheir inner sides facing the machine, and these inner sides of the shoesbear against or rest, adjacent to the edges of the paper strips as theypass between the heaters, Figs. 3, 7, and 8.. The shoes O'-may bemounted in fixed position adjacent the outer edges of the passagebetweenthe heaters; but to enable them to bear directly against the edges ofthe strips, as shown in Figs. 7 and 8, to more effectively direct theair through .the strips longitudinally of their corrugations, but at ICCthe same time permit the shoes to yield to any v outward pressureexerted against them by the of the aprons upon the paper, each of themis strips in event the latter should occasionally be deflected to oneside or the other of their regular path, I hinge the shoes upon theinner ends of arms D, whose outer ends are hinged to supports E, securedto the air-pipes Y, Figs. 7 and 8, coiled springs F, connected to thearms D, serving to pull them in a direction to yieldingly press theshoes 0 inward against the edges of the paper.

As shown in Fig. 3, the shoes 0 upon opposite sides of the machine arearranged out of transverse line with each other, so that blasts of airwill be constantly blown in opposite directions through the corrugationsin the paper as the latter is drawn rearward through the heaters,thereby drying both edges of the paper equally. The same result ofconnecting the shoes 0 with the airpipes Y by means of the hingedsupportingarms D and'fiexible pipes A may be accomplished by connectingthe shoes with the pipes after the manner of an ordinary hingedgasfixture bracket and allowing the air to pass from the pipe throughsuch hinged connections to the shoes.

Upon emerging from the rear ends of the heaters the strips of paper, nowthoroughly dried and united, pass between the endless aprons G Figs. 1and 2, constituting the feeding devices for drawing the strips throughthe machine. slats placed transversely of the machine and secured attheir opposite ends to endless sprocket-chains supported upon wheelscarried by shafts I, suitably journaled in bearings upon the frameworknear its middle and at its rear end, as shown. The construction of thechains and the method of securing the slats to their links is shown indetail in Fig. 15, where (1 represents the links of the chain, providedwith lateral ears I), resting upon and secured to the ends of the slatsc of the apron by screws (1. The chains are provided at the points ofconnection of their links with antifriction-rollers e, which projectslightly above the plane of' the links.- These rollers are adapted tocooperate with vertically-adjustable presser-bars J, vertically guidedupon the framework of the machine, Figs. 2 and 14, and engaged byadjusting-screws K. The outer edges of the apron G pass beneath theupper presser-bars J at the opposite sides of the machine, while theopposite edges of the lower apron pass'over and travel upon the uppersurfaces of the lower presser-bars J. By adjusting the presser-bars J bymeans of the screws K the grip of the aprons G upon the paper stripsbetween them may be regulated as desired, it being necessary that theaprons shall maintain a sufficient grip upon the paper to draw itsteadily forward through the machine, but care being taken that thepressure exerted upon the paper shall not be sufficient to crush it andbreak down the corrugations. To afford a'smooth gripping-sur- Theseaprons are formed of surrounded by an endless rubber belt or outer apronL, Figs. 1, 2, and 3. The upperapron G passes at its middle over avertically-adjustable supporting-roller M, mounted in bearings upon thetop of the framework and which can be raised to take up the slack of theupper apron G, caused by wearing of the links in the chain, and the beltL passes over and is supported by a second smaller roller N.

In Fig. 16 I have illustrated a modified construction of the feed-apronsG, where the slats are secured at their opposite ends to flexible beltsm, which take the place of the sprocket-chains and are provided withantifriction-rollers 02, adapted to cooperate with the presser-bars J.In this construction the supporting-wheels of the aprons,secured uponthe shafts I, have their peripheries shaped to fit directly against andcooperate with the slats of the chain, as shown.

The drawing of the paper between the polished faces of theheater-plates, which press lightly against the paper and maintain'itscomponent strips in firm contact with each other, not only serves to drythe paper and secure its component strips together, but irons theopposite surfaces of the paper and gives them a smooth and perfectfinish not attainable where the paper is dried between fixedheating-surfaces.

From the rear end of the passage between the aprons G the finished paperis delivered to the cutting devices, which may be now described,reference being had to Figs. 1, 2, 3, 11, 12, and 13. Hinged at itslower end to rearwardly-projecting bracket-arms 0' upon the rear end ofthe framework is a frame P, adapted to be swung backward and forward atits upper end,said frame consisting of two vertical side arms P, rigidlyconnected with each other at their upper ends. Pivotally mount; ed nearits middle in the upper end of this swinging frame upon a transverserodfis a rocking frame Q, which carries at its rear end a transverseknife-bar R, adapted to cooperate with a fixed knife-bar S, secured tothe rear side of the cross-bar S of a second frame mounted upon the rodfand having forwardly-extending side arms N, Figs. 2

and 11, for a purpose hereinafter explained. When the front end of therocking frame Q is raised and its rearend thrown downward, the knife Rwill shear ofi the paper against the fixed knife S. Each of the oppositearms of the rocking frame Q carries at its forward end anoutwardly-projecting stud T, (surrounded by an antifriction-sleeve,)which studs are adapted to cooperate with inclined surfaces and camsupon the fixed frame of the machine in sucha way as to force the frontend of the rocking frame Q upward and its rear end downward as the upperend of the frame Pis swung rearward and to release the frame Q andpermit its forward end to be moved downward and its rear end upward asthe upface and increase the efiectiveness of the grip l per end of theframe P approaches its rear- Ward limit of movement. As seen in Figs. 11

and 12, the main frame of the machine has secured to its opposite sidesadjacentthe front ends of the side arms of the rocking frame Q plates U,provided with recesses'V, having;

upwardly and rearwardly inclined walls terminating in downwardly andrearwardly curved portions, the bottom walls of the recesses beinghorizontal. Pivoted ineach T'eside arms of the rocking frame Q, normallyrest in the front ends of the recesses V in the plates U immediatelyforward of the front When, therefore, the upper end of the frame P is=swung rearward, carrying the rocking frame Q with it, the studsT,projecting from the lat-, ter, will ride upward over theinclinedguidearms W, and thereby rock the frame Q, forcends of the inclinedguide-arms W.

ing its front end upward and its rear end downward as the parts moverearwardly and causing the knife-bar R to shear off the paper 1 againstthe plate or knife-bar S, fixed to the bar B. As the frame P approachesthe rear end of its movement the studs T upon the front end of the frameQ will pass beyond the upper rear ends of the guide-arms W and contactwith the downwardly curved rear walls 72. of the recesses V, whichcurved surfaces will act as cams upon the studs T and force themdownward, thereby rocking the frame Q back toward normal position andthrowing its rear end upward and disengaging the knife-bar R from therear edge ofthe paper. The swinging frame P is then free to swingforward to normal position again under the stress of a spring connectedto it and hereinafter described, and at its forward movement the studs Tupon the front end of the rocking frame Q will ride under the guidearmsW and lift them until they clear their forward ends, whereupon the armsW will .drop behind the studs T, ready for the next operation. M

The rocking frame Q is'weighted in front of its pivot f, as by across-bar X, Figs. 3 and 11, or may havea spring connected to it to themore readily return it to normal position at the end of the rearwardmovement of the swinging frame P.

It remains to describe the means by which the frame P is swung rearwardand the knife R thus caused to travel with the paper while it is beingactuated to sever it. Adjustably secured upon one side of the frame P,near its upper end, Fig. l, is adisk Z, having projecting from it a studZ, over which fits an eye in a casting secured to the rear end of aforwardly-extending arm A", Whose front end rests in and isadapted' totravel backwardly and forwardly of a trough or guideway B, secured tothe side of the framework, Figs. 1 and 13. This guideway B is open atits front and rear ends, and through it passes a sprocket-chain C,mounted at its rear end upon a sprocket-wheel D", secured to the lowerone of the two rear shafts I, which support the feed-aprons, and at itsforward end passing around a second sprocket-wheel E, carried by a slideF, secured to and adjustable longitudinally of the framework. The lowerforward end of the arm A is in the present instance provided with a shoeG, which rests upon the sprocket-chain G in the bottom of the guidewayB". The chain has secured to itat equal distances from each otherdetachable cleats or blocks H", adapted in the rearward movement of thechain 0 through the guideway B to contact with the lower forward end ofthe arm A and carry the latter rearward with the chain until it becomesdisengaged from the block upon the chain by riding up over a transversecross-piece l at the rear end of the guideway, whereupon the arm A isfree to travel forward again over the chain C and remain at rest innormal forward position until engaged by another block H.

Each rearward movement given the arm A"'in the manner and by the meansabove described will swing the frame P rearward and cause the knife R tosever the paper, and by placing the blocks H" at the desired distanceapart upon the chain 0 the knife may be actuated at proper intervals tocut the paper into pieces of any desired length. The return forwardmovement of the swinging frame P and its actuating-arm A is effected bymeans of a spring J, Fig. 1, connected to the lower end of a strap K,wound around a drum L, fast upon a shaft- X", having secured to itsopposite ends pinions M, meshing with racks upon the under sides of theforwardly -extending side arms of the frame Q, Figs. 2, 3, and 11. Whenthe frame P is swung rearward, the drum L" is rotated and the strap Kwound upon it and the spring J put under tension, and when the front endof the arm A is raised out of engagement with the block upon the chain 0the spring J pulls the parts forward to normal position. In the presentinstance the swingiugframe P has secured to its upper end wooden bnfiers"5, adapted to contact with the frame of the machine and arrest theparts without the shock of metal striking metal.

The purpose of making the disk Z adjustable upon'the frame P is for thepurpose of enabling the operation of the knife R to be adjusted andtimed through the medium of the arm A. By adjusting the disk Z in onedirection the arm A will be projected forward, so that the blocks H uponthe chain 0 will contact with its forward end at an earlier point in therearward movement of the chain and the arm A" and, frame P be thus givena greater rearward movement before the front end of the arm isdisengaged from the block on the chain than if the disk Z were adjustedin the opposite direction. Itis desirable that the knife-bar R shall bethrown upward and disengaged fromthe paper just .before the frame Pcompletes its rearward movement, so that the knife maybe moving rearwardwith the paper at the time of such disengagement, and therefore not formanobstructio'n to the rearward move- P by means of the adjustable diskZ.

In the machine from which the drawings in the present instance have beenmade the arm A was of wood; hence the provision of the; metal casting atits rear end engaging the stud Z upo'n'the diskZand the provision of theseparate metal shoe G, secured to its for- The entire arm may of coursebe 1 stripand bringing the facing-strip into conward end. made of asingle piece of metal.

The purpose .ofmounting the forward sprocket-wheel E upon the slide F,adjustable longitudinally of the framework,is to permit the chain 0 tobe readily removed from its sprocket-wheels to permit attach ment anddetachment of the blocks H when it is desired to change the lengths ofpaper to be cut from the strips fed through the machine. By looseningthe ends of the bolts connecting the slide F with the framework thelatter can be slid rearward sufliciently to permit the readydisengagement of the chain from the sprockets.

The driving-shaft of the machine is shown at 0', Fig. 8, where it hassecured upon it a taper pulley Q, by means of which the speed of themachine maybe varied. The shafts I, carrying the supporting-wheelsfor-the feedaprons G, are driven by suitable gearing from the shaft 0,(shown in Fig. 3,) while one of the shafts has secured upon it asprocketwheel, over which is passed a long sprocketchain R, extending tothe extreme forward end of the machine and there passed around asprocket wheel upon the spindle of the roller H to drive the latter, therollers H and F being geared together, as shown in said view.

Having thus fully described my invention, I claim- I 1. An apparatusformaking double-faced corrugated paper, com prising means for drawing astr-ipof single-faced corrugated paper and a strip of facing-papersteadily through the apparatus, means for slightly flattening the crownsof the corrugations of the corrugated strip and applying paste theretoand then bringing the facing-strip into contact therewith, and means formaintaining proper contact of the two stripsand applying heat to them asthey are steadily drawn through the apparatus,

2. An apparatus formaking'double-faced corrugated paper, comprisingmeans fordruw- 'ing a strip of single-faced corrugated paper and a stripof facing-paper steadily through the apparatus, means for slightlyflattening the crowns of the corrugations of the corrugated strip',means for applying paste to the crowns of the corrugationsof thecorrugated strip and bringing the facing-strip into contact therewith,and upper and lower stationary heaters having flat opposing surfacesbetween which and in direct Contact with which the strips arecontinuously drawn and by which they are maintained inproper contactwith each other and dried as they move through the apparatus.-

3. jAn apparatus for making double-faced corrugated paper, comprisingmeans for drawing a strip of single-faced corrugated paper and a stripof facing-paper steadily through the apparatus, means for slightlyflattening the crowns of the corrugations of the corrugated strip, meansfor applying paste to the crowns of the corrugations of the corrugatedtact therewith, and an upper and lower heater of grad ually-increasingtemperatu re in the direction of movement of the strips, said heatershaving flat opposing surfaces between which the strips are drawn and bywhich they are maintained in proper contact with each other and dried.

4. An apparatus for making double-faced corrugated paper, comprising'means fordrawing a strip of single-faced corrugated paper and astrip of facing-paper steadily through the apparatus, means for slightlyflattening the crowns of the corrugations of the corrugated strip, meansfor applying paste to the crowns of the corrugations of the corrugatedstrip and bringing the facing-strip intp contact therewith, upper andlower stationary heaters having flat opposing su rfaces between; whichand in direct contact with which the strips are drawn, and means fordirecting airblasts between said heaters transversely of the movingstrips and through their corrugations.

5. An apparatus for makingdouble-faced corrugated paper, comprisingmeans for drawing a strip of single-faced corrugatedpaper and a strip offacing-paper steadily through IIO the apparatus, means for slightlyflattening the crowns of the corrugations of the corrugated strip, meansfor applying paste to the I crowns ot' the corrugations of thecorrugated strip and bringing the facing-strip intocontact therewith, anupper and a lower heater of gradually-increasing temperature in thedirection of movement of the strips and having flat opposing surfacesbetween which the strips are drawn and by which theyare maintained inproper contact with each other, and

means for directing air-blasts between. the proper contactwith eachother and dry the heaters transversely of the moving strips and same,substantially as described.

through their corrugations.

6. An apparatusfor making double-faced they are drawn between saidheaters and dried, and means for raising the upper heater to permit theinitial introduction of the paper strips and their engagement with themeans for drawing them through the apparatus.

7. An apparatus for making double-faced corrugated paper comprisingmeans for drawinga strip of single-faced corrugated paper and a strip offacing-paper steadily through the apparatus, means for slightlyflattening the crowns of the corrugations of the corrugated strip, meansfor applying paste to the crowns of the corrugationsof the corrugatedstrip and bringing the facing-strip into contact therewith, an upper anda lower heater having flat opposing surfaces between which the stripsare drawn and by which they are held in proper contact with each otheras they are drawn between said heaters and v dried, and means,independent of the operaheater having opposing surfaces between whichthe strips are drawn and by which they are maintained in proper contactwith each other while being dried, said upper heater being composed ofaplurality of independent horizontal plates or sections, and means for 4raising and lowering the several sections of the heater simultaneouslyand uniformly by a single operation.

9. The herein-described apparatus for making doublefaced corrugatedpaper, comprising the upper and lowerheaters M N having Y the fiatopposing surfaces, the upper heaters being composed of aplurality ofindependent horizontal sections, the rolls for applying paste to thecorrugated strip and bringing the facing-strip into contact therewith,and

meansin rear of the heaters M N for drawing the two strips steadilyrearward bet ween said heaters while the latter hold the strips in 10.The herein-described apparatus for makingdouble-faced corrugated paper,comprising the upper and lower heaters M N, the

rolls for applying paste to the corrugated strip and bringing thefacing-strip into contact therewith, means in rear of the heaters M Noperating to draw the two strips steadily rearward through the heaters,the vertical screw-rods Q extending upward from the two sections of theupper heater through bearings upon the framework, the sprocket-wheels Tthreaded upon their upper ends above said bearings, and the chain Uconnecting said wheels, substantially as described.

11. The hereiudescribed apparatus for making double-faced corrugatedpaper, comprising the upper and lower heatersM N, the

rolls for applying paste to the corrugated strip and bringing thefacing-strip into contact therewith, means in rear of the heaters M Ntions of the upper heater through bearings R uponthe framework, thesprocket-wheels T threaded upon the rods Q above the bearings Icetherewith, means in rear of the heaters M N operating to draw the twostrips steadily rearward through the heaters, the vertical screwrods Q,extending upward from the two sections of the upperheaterthrough'boarings R upon the framework, the sprocket-wheels Tthreaded upon the rods Q abovethe bearings R, the antifriction-ballsinterposed between said bearings and the hubs of said wheels, the chainU passed around said wheels, and the rods V projecting vertically fromthe fouroorners of each of the heaters MN and extending through holes inthe framework and provided on their upper, ends with the nuts X,substantially as described. t

13. The herein; described apparatus for making double-faced corrugatedpaper, comprising the upper and lower heaters M N, the

prising the upper and lower heaters M N, the l ward end. of which thesteam is exhausted,

rolls for applying paste to the corrugated strip and bringing thefacing-strip into contact therewith, means in rear of the heaters M Nfor drawing the strips rearward between the heaters, the air-pipes Y Yat the opposite sides of the heaters, and the hollow shoes C receivingair from the pipes Y Y and yieldingly pressed toward the edges of thestrips as they pass between the heaters, substantially as described.

15. The herein described apparatus for making double-faced corrugatedpaper, comprising the upper and lower heaters M N, the rolls forapplying paste to the corrugated strip and bringing the facing-stripinto contact therewith, means in rear of the heaters M N for drawing thestrips rearward between the heaters, the air-pipes Y Y at the oppositesides of the heaters, and the hollow shoes 0 mounted upon hingedsupports and receiving air from the pipes Y Y, and suitably-appliedsprings yieldingly pressing the shoes toward the edges of the stripsbetween the heaters, substantially as described.

16. The herein described apparatus for making double-faced corrugatedpaper, comprising the upper and lower heaters M N, the rolls forapplying paste to the corrugated strip and bringing the facing-stripinto contact therewith, means in rear of the heaters M N for drawing thestrips rearward between the heaters, the hollow shoes 0' connected bythe hinged arms D with supports upon the pipes Y Y, the flexible hose Aand nipples connecting the interior of the shoes with the interior ofthe pipes Y, and the springs F connected to the arms D and yieldinglypressing the shoes 0 toward the heaters, substantially as described.

17. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism, of a pair of flatsurfaeedheaterplates between which the paper is passed for the purpose ofgradually drying the same, each of said plates consisting of a flatmetal body containing a continuous steam-passage extending transverselyback and forth throughout its length, to the rear end of which passagethe steam for heating the plate is admitted and from the forward end ofwhich the steam is exhausted, whereby the plate is heated to agraduallyincreasing temperature in the direction of motion of the paperbetween the plates.

18. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism, of a pair of flatsurfacedheater plates between which the paper is passed for the purpose ofgradually drying the same, each of said plates consisting of a flatmetal body containing a continuous steam-passage extending transverselyback and forth throughout its length, to the rear end of which passagethe steam for heatand one or both of said plates being provided towardits forward end with supplemental exhausts by which the area of thesurface of the plate heated by the steam may be varied.

19. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism, of a pair of flatsurfacedheater-plates between which the paper is passed for the purpose ofgradually drying the same, each of said plates consisting of a fiatmetal body having a series of transverse steam-pipes cast directly init,with their ends at the opposite edgesof the plate suitably connectedto form a continuous steam passage extending back and forth through theplate throughout its length, for the purpose described.

20. In combination with paste-applying mechanism,the herein-describedheater-plate composed of the fiat metal body having the steam-passageextending transversely back and forth through its length for the purposeof heating the plate at a gradually-increasing temperature from theexhaust end of said steam-passage to its inlet end,and said steampassagebeing provided at its exhaust end with a plurality of exhaust-outlets bymeans of which the area of the plate heated by the steam may be varied.

21. In apparatus for making double-faced corrugated paper, thecombination of the paste-applying mechanism of the herein-describedheater-plate for drying the paste applied to the paper and consisting ofthe flat metal body having a series oftransverse steam-pipes castdirectly in it,with their outer ends projecting beyond the edges of theplate and suitably connected to form a continuous steam passageextending back and forth transversely of the plate from end to endthereof.

22. In apparatus for making double-faced corrugated paper,thecombination with pasteapplying mechanism, the heater-plates M M N N fordrying the paste applied to the paper, each of said plates consisting ofthe flat metal body having the steam-passage extending back and forthtransversely of it throughoutitslength, the passage in the upper platesM M being connected at the adjacent ends of said plates to form acontinuous passage throughout the two plates and the passages in thelower plates N N being likewise connected at the adjacent ends ofsaidplates to form a continuous passage throughout the lower plates, andmeans for simultaneously raising and lowering the upper plates M Muniformly relatively to the lower plates N N.

23. In an apparatus for making doublefaced corrugated paper,thecombination with paste-applying mechanism of a pair of flatsurfacedheater-plates between which the paper is passed to dry the same, of apair of power-driven endless aprons located in rear ing the plate isadmitted and from the for-i of the heater-plates and adapted to receivethe paper between .them and draw it rearward from the heaters anddeliver it at the rear end of the apparatus.

24. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism of a pair of flatsurfacedheater-plates between which the paper is passed to dry the same, of apair of power-driven endless aprons located in rear of the heater-platesand adapted to receive the paper between them and draw it rearward fromthe heaters and deliver it at the rear end of the apparatus and meansforregulating the pressure of said aprons upon the paper while passingbetween them. I

25. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism of a pair of flatsurfacedheater-plates between which the paper is passed to dry the same, of apair of power-driven endless aprons located in rear of the heater-platesand adapted to receivev the paper between them and draw it rearward fromthe heaters and deliver it at the rear end of the apparatus each of saidaprons being composed of transverse slats secured at their opposite endsto chains passing over and supported by wheels at the front and rearends of the paths of the aprons.

26. In an apparatus for making doublefaoed corrugated paper, thecombination with paste-applying mechanism of a pair of flatsurfacedheater-plates between which the paper-is passed to dry the same, of apair of power-driven endless aprons located in rear of the heater-platesand adapted to receive the paper between them and draw it rearward fromthe heaters and deliver it at the rear end of the apparatus, each ofsaid aprons being composed of transverse slats secured at their oppositeends to chains passing over and sup-. ported by wheels at the front andrear ends of the paths of the aprons, and adjustable presser-barscodperating with one or both aprons to regulate the pressure exerted bythem on the paper as it passes between them.

, 217. In an apparatus for making doublefaced corrugated paper, thecombination with paste-applying mechanism of a pair of flatsurfacedheater-plates between which the paper is passed to dry the same, of apair of power-driven endless aprons located in rear of the heater-platesand adapted to receive the paper between them'and draw it rearward fromthe heaters and deliver it at the rear end of the apparatus, each ofsaid aprons being 1 composed of transverse slats secured at theiropposite ends to chains passing over and supported by wheels at thefront and rear ends of the paths of the aprons, the chains ofone or bothaprons being provided with antifriction-rollers at the junctions of itslinks, and adjustable presser-bars engaging said rollers and by means ofwhich the pressure of the aprons upon the paper passing between them maybe regulated.

28. The combination with paste-applying mechanism and with the heatersM, N, of the power-driven endless aprons G arranged in rear thereof andeach composed of the transverse slats c secu red at their opposite endsto the links aof sprocket-chains supported upon wheels carried by theshafts I substantially as described.

29. The combination with paste-applying mechanism and with the heatersM, N, of the power-driven endless aprons G arranged in rear thereof andeach composed of the transverse slats a secured at their opposite endsto the linksa of sprocket-chains supported upon wheels carried by theshafts I, said chains being provided with the antifriction-rollers c,and the adjustable presser-bars J cooperating with the rollers e toregulate the pressure of the aprons upon the paper passed between them,substantially as described;

30. The combinatiomin an apparatus of the class described, ofpaste-applying mechanism .and the endless power-driven aprons Gcomposedof the transverse slats and sprocketchains, of the outer aprons or beltsL surrounding the aprons G and composed of material forming a smooth andefficient grippin g-surface to engage the paper passed between theaprons.

31. The combination, in an apparatus of the class described, ofpaste-applying mechanism and the power-driven endless aprons G composedof the transverse slats and sprocketchains, of the outer aprons or beltsL surrounding the aprons G and composed of material forming a smooth andeflicient ,gripping-surface to engage the paper passed between theaprons, the roller M for supporting the upper apron-G in its forwardpassage from its rear supporting-wheels to its forward ones, and theroller N above the roller M for supporting the belt L above the apronGr, substantially as described.

32. The combination, in apparatus of the class describedmfpaste-applying mechanism, with means for drawing the paper through theapparatus and delivering it from the rear end thereof, of a backwardlyand forwardly movable knife-carrying frame, a transversevertically-reciprocating knife mounted in said frame, means foroperating said knife to sever the paper and retract it therefrom duringthe rearward movement of the frame, and means for automatically movingsaid frame rearward with the paper and returning it to normal positionat predetermined intervals.

33. The combination, in apparatus of the class described, ofpaste-applying mechanism, with means for drawing the paper through theapparatus and delivering it from the rear end thereof, of a backwardlyand forwardly movable'knife-carrying frame, a transverse vertically-reciprocating knife mounted in said frame, means for operating saidknife to sever the paper and retract it therefrom during the rearwardmovement of the frame, and.

adjustable means for automatically moving said frame rearward with thepaper and re- Vertically-reciprocating knife mounted therein, meansactuated by the rearward movement of the frame for operating the knifeto sever the paper during the rearward movement of the frame, and meansfor automatically moving the frame rearward with the paper and returningit to normal positionat predetermined intervals.

35. The combination, in apparatus of the classdescribed,ofpaste-applying mechanism, with means for drawing the paper through theapparatus and delivering it from the rear end thereof, of a backwardlyand forwardly movable knife-carrying' frame, a transversevertically-reciprocating knife mounted therein, means actuated by therearward movement of the frame for operating the knife to sever thepaper and retract and disengage it therefromduring the rearward movementof the frame, and means for automatically moving the frame rearward withthe paper and returning it to normal position at predeterminedintervals.

36. The combination, in apparatus of the class described,ofpaste-applying mechanism, with means for drawing the paper through theapparatus and delivering it from the rear end thereof, of a backwardlyand forwardly movable knife-carrying frame, a transversevertically-reciprocating knife mounted therein, means actuated by therearward movement of the frame for operating the knife to sever thepaper and retract and disengage it therefrom during the rearwardmovement of the frame, and adjustable means for automatically moving theframe rearward with the paper and returning it to normal position atpredetermined intervals,which intervals may be varied as desired byadjustment of said means.

37. The combination, in apparatus of the class described,ofpaste-applying mechanism, with means for drawing the paper rearwardthrough the apparatus and delivering it from the rear end thereof, of abackwardly and forwardly movable knife-carrying frame, a transversevertically reciprocating knife mounted in said frame, cams upon thefixed frame of the machine cooperating with the movable support of saidknife to operate the latter to sever the paper as the knife is carriedrearward by its frame, with the paper, and means for automaticallymoving said frame rearward and returning it to normal position atpredetermined intervals.

38. The combination, in apparatus of the class described,ofpaste-applying mechanism,

with means for drawing the paper rearward through the apparatus anddelivering it from the rear end thereof, of a backwardly and forwardlymovable knife-carrying frame, a'

transverse verticallyreciprocating knife mounted upon a rocking supportin said frame, cams upon the fixed frame cooperating with said rockingsupport to operate the knife to sever the paper during the rearwardmovement of the movable frame, and means for automatically moving saidframe rearward and returning it to normal position at predeing thefirst-mentioned frame backward and forward at predetermined intervals.

40. In apparatus of the classdescribed having paste-applying mechanismand paperfeeding mechanism, the combination of the knife-carrying frameP hinged to a support at its lower end and adapted to be swung forwardand backward to and from the delivery end of the apparatus at its upperend, the cooperating knives R S mounted in said frame, means for movingthe knife B into cooperation with the knife S as the frame P is swungrearward, to sever the paper as the knives move rearward with the paper,and means for swinging the upper end of the frame P backward and forwardat predetermined intervals. I

41. In apparatus of the class described having paste-applying mechanismand paperfeeding mechanism, the combination of the knife-carrying frameP hinged to a support at its lower end and adapted to be swung forwardand backward to and from the delivery end of the apparatus at its upperend, the cooperating knives R S mounted in said frame, means actuated bythe rearward movement of the frame P for moving the knife B intocooperating with the knife S, to sever the paper as the knives moverearward with the paper, and means for, swinging the upper end of theframe P backward and forward at predetermined intervals.

42. In apparatus of the class described having paste-applying mechanismand paperfeeding mechanism, the combination of the knife-carrying frameP hinged to a support at its lower end and adapted to be swung forwardand backward toand from the delivery end of the apparatus at its upperend, the

IIO

frames Q Q" mounted in the frame P, the

knives R S carried by the frames Q Q and cooperating with each other,the plates U upon the fixed framework at the opposite sides of theforward portion of the rocking frame Q, the guides W pivoted in therecesses V in the plates U, the studs T projecting from the oppositesides of the rear end of the rocking frame Q and cooperating with therecesses V and pivoted guides W in the plates U, and means for swingingthe upper end of the frame P backward and forward.

43. The combination, in apparatus of the class described, ofpaste-applying mechanism, with means for drawing the paper rearwardthrough the apparatus and delivering it therefrom, of a bac'kwardly andforwardly movable knife-carrying frame, a transversevertically-reciprocatingknife mounted therein, means for operatingsaidknife to sever the paper during therearward movement of said frame, anendless power-driven chain or belt, means intermediate said chain and abackwardly and forwardly movable frame for moving the latter backwardand releasing-it at predetermined intervals, and means for moving theframe forward to normal position when released.

44. The combination, in apparatus of the class described, ofpaste-applying mechanism, with means for drawing the paper rearwardthrough the apparatus and delivering it therefrom, of a backwardly andforwardly movable knife-carrying frame, a transverse vertical]y-reciprocatin g knife mounted therein, means for operating said knifeto sever the paper during the rearward movement of said frame, anendless power-driven chain or belt provided with projections located atregular intervals in its length, an arm connected at one end to thebackwardly and forwardly movable frame and at its opposite endcooperating with the projections upon said chain to move said framerearward and release it at regular intervals, and means for moving theframe forward to normal position when released.

45. The combination, in apparatus of the class described, ofpaste-applying mechanism, with means for drawing the paper rearwardthrough the apparatus and delivering it therefrom, of a backwardly andforwardly movable knife-carrying frame, a transversevertically-reciprocating knife mounted therein, means for operating saidknife to sever the paper during the rearward movement of said frame, anendless power-driven chain or belt, detachable projections secured uponsaid chain at regular intervals, an arm connected at one end to thebackwardly and forwardly movable frame and cooperating at its oppositeend with the projections on said chain, to move said frame backward andrelease it at regular intervals determined by the number and arrangementof the projections attached to the chain, and means for moving the frameforward to normalposition when released.

46. In apparatus of the class described having paste-applying mechanismand paperfeeding mechanism, the combination, with the backwardly andforwardly movable knifecarrying frame P, of the endless chain 0 providedwith the cleats or projections H, the arm A pivoted at its rear end tothe knife-carrying frame and at its forward end cooperating with thecleats H on the chain 0 and with the releasing member I for disengagingit from said cleats, and means for returning the knife-carrying frame tonormal position.

47. In apparatus of the class described having paste-applying mechanismand paperfeeding mechanism, the combination of the backwardlyandforwardly movable knife-carrying frame P, the endless chain 0 providedwith the detachable cleats or projections H and passing through theguideway B, the arm A pivoted at its rear end to the frame Pand at itsforward end moving backward and forward in the guideway B andcooperating with the projections H on the chain 0 and with the releasingmember I, and means for returning the frame P to normal position.

48. In apparatus of the class described having pasteapplying mechanismand paperfeeding mechanism, the combination of the backwardly andforwardly movable knife-carrying frame P, the transversevertically-reciproc'ating knife mounted therein and operated by therearward movement of the frame to sever the paper and be retracted fromongagement therewith, the endless power-driven chain 0 having theprojections H", the arm A" adjustably pivoted at its rear end to theframe P and codperating at its forward end with the projections H uponthe chain 0 and with the releasing member I, and means for returning theframe P to its normal position.

49. In apparatus of the class described having paste-applying mechanismand paperfeeding mechanism, the combination of the back wardly andforwardly movable knife-carrying frame P, the transversevertically-reciprocating knife R mounted therein and 0perated by themovement of the frame to sever the paper and be retracted fromengagement therewith, the adjustable disk Z secured to the frame P andhaving the stud Z, the endless power-driven chain 0 having theprojections H, the arm A provided at its rear end with an eye fittingthe stud Z on the disk Z and codperating at its forward end with theprojections H on the chain 0 and with the releasing member I", and meansfor returning the frame P to normal position.

50. In an apparatus for making doublefaced corrugated paper, thecombinatiomwith the paste-applying rolls, of the roller G andpresser-plate D located in advance thereof and operating to slightlyflatten the crowns of the corrugations preparatory to applying paste tothem.

, JEFFREY T. FERRES.

Witnesses:

Ann RHOADS, E. B. WALKER.

